Fabric for making packages for spices



(ModeL) Y H. 0. CHOU-KER.

Fabric for Making Packages for Spios, 800. No. 239,734. Patented April 5,1881,

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ATTORNEYS.

UNITED STATES PATENT OFFICE.

HENRY C. GRQ OKER, OF MILWAUKEE, WISCONSIN.

FABRIC FOR MAKING PACKAGES FOR SPICES, 80C.

SPECIFICATION forming part of Letters Patent No. 239,734., dated April 5, 1881.

Application filed May 13, 1880. (ModeL) To all whom it may concern Be it known that I, HENRY O. OnooKER, of the city and county of Milwaukee, and State of Wisconsin, have invented a new and Improved Fabric for Making Packages for Holding Spices and Similar Substances; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to a fabric for the manufacture of packages in which to put up ground coffee, spices, baking-powder, and other substances which deteriorate by exposure to the air or to moisture, and which will serve to preserve their aroma or other desirable qualities for a long time; and the improvement consists in a paper fabric formed of one layer of waxed paper inolosed within two layers of common paper, whose edges project over that of the waxed paper and are pasted together.

In the drawings, Figure 1 is a perspective view of a package prepared according to my invention for the reception of the goods. Fig. 2 is a representation of a piece of my prepared fabric having a portion of the top layer removed, and Fig. 3 is a sectional view of the fabric.

There are commonly employed three modes of putting up such substances as above enumerated now in useviz., to pack them in tin cans or in packages having an outer covering of tin-foil, or in packages in which a covering of waxed, greased, or similarly prepared fabric is placed next to the goods. The first two methods are, comparatively expensive. The third is objectionable, as the substance to be preserved is liable to acquire a disagreeable taste, and odor from its immediate envelope.

To make these preserving-packages at a trifling cost, and yet so as to fulfill the requirements in a highly satisfactory degree, I place between two layers, A B, of ordinary paper, of sufficient size to form the package, a third layer, 0, of suitable air and water proof material, preferably waxed paper. The middle layer, 0, is cut a little smaller than the outer layers, as shown in Fig. 2, so that the edges of the outer layers may be pasted together to inclose the middle layer, as shown in Fig. 3. The inner layer, A, is a little smaller than the layer B, so that a margin of a single thickness of paper may be obtained around the fabric to enable it to be more readily pasted around the meeting edges of the fabric when it is folded to form the package. From the fabric thus prepared a package may be made for the reception of the goods by shaping the fabric in and securing its edges or flaps, properly secured together by paste or similar adhesive material, as shown in Fig. I.

The form of the package may be round or square, box-like, or bag-like, a's preferred, or as may be best adapted to the nature of the substance to be packed. By the means above described the aroma and other desirable qualities of coffee, spices, and other substances are preserved at a trifling cost, and yet in a perfectly satisfactory manner.

1 am aware that two sheets of paper have been secured together by a water-proof paste made of a compound of caoutchouc and paraffine or Japan wax spread upon their sides to be joined, and also that sheets of paper have been secured to the opposite sides of a sheet or layer of gntta-percha or rubber, the rubber being heated to adhere to the sheets of paper under pressure, and do not claim such fabrics.

What I claim as new is A paper fabric for the manufacture of water-proof packages that consists of three layers of paper, the middle one of which is waterproofed, the other layers being pasted together at their edges around the waterpro-ofed layer to inclose it, as shown and described.

HENRY CLAY GROOKER.

Witnesses:

BURDETT J. JOHNSON, LEO F. BoDDEN. 

